#!/bin/bash

# 指定源目录
SOURCE_DIR="."

# 遍历源目录下所有.java文件
function convert_to_utf8() {
    local file="$1"
    encoding=`file -I ${file} | awk -F= '{print $2}'`
    echo "encoding: $encoding"
    if [[ "$encoding" == *"iso-8859-1"* ]]; then
      # 执行转换，输出为.utf8.txt文件  如果直接用iconv -f UTF-8 -t UTF-8 "$file" > "$file" 会导致文件内容被清空
      iconv -f GBK  -t UTF-8 "$file" > "${file}.utf8.txt"
      # 所以要将utf8.txt文件重命名为原文件名
      mv "${file}.utf8.txt" "${file}"
    else
        echo "The file is already in UTF-8 encoding."
    fi
}

# 递归函数处理目录下的所有文件
function recursive_convert() {
    for entry in "$1"/*; do
        if [ -d "$entry" ]; then
            recursive_convert "$entry"
        elif [ -f "$entry" ]; then
          # 临时过滤jsp文件
          if [[ "$entry" == *.java ]]; then
            convert_to_utf8 "$entry"
          fi
        fi
    done
}

recursive_convert $SOURCE_DIR

